[firefighter9]

I am looking to sell and replace my fiio m11 pro. There isn't anything wrong with it but I'm just wanting to try something different. I'm looking in the used market and the two that have caught my eye are the Ibasso DX300 ($700) and the AK SP1000 ($720). I currently use my DAP connect via coax to my minidsp in my car and my main IEM's are Aur Neon Pros. I believe the Sp1000 is older than the dx300 but I'm more interested in which one sound better overall. Any help is greatly appreciated.